Walmart on 99th and Ida closes at midnight (12am). At the time of your post, you have 3hrs until they close. :) If you need 24hrs, the Walmart on 72nd street and the Walmart next to Sam's on L don't close. (EDIT: I may be mistaken and it's 11pm, not 12am. If that is the case, I apologize and you have 2hrs left before they close!)
11 pm
Walmart in Blair open 24 hours
72nd & Pine opened all night
This location closes at midnight.
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